JP2005263983A - Method for recycling organic waste using coke oven - Google Patents

Method for recycling organic waste using coke oven Download PDF

Info

Publication number
JP2005263983A
JP2005263983A JP2004078690A JP2004078690A JP2005263983A JP 2005263983 A JP2005263983 A JP 2005263983A JP 2004078690 A JP2004078690 A JP 2004078690A JP 2004078690 A JP2004078690 A JP 2004078690A JP 2005263983 A JP2005263983 A JP 2005263983A
Authority
JP
Japan
Prior art keywords
coke
organic waste
coke oven
waste
recycling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2004078690A
Other languages
Japanese (ja)
Inventor
Kazumasa Wakimoto
一政 脇元
Hideaki Inoue
英明 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Holdings Inc
Original Assignee
JFE Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Holdings Inc filed Critical JFE Holdings Inc
Priority to JP2004078690A priority Critical patent/JP2005263983A/en
Publication of JP2005263983A publication Critical patent/JP2005263983A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/78—Recycling of wood or furniture waste

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for recycling organic waste using a coke oven, by which a large amount of waste such as plastic waste, etc., is recycled by using an coke oven for producing coke of steelmaking. <P>SOLUTION: The method for recycling organic waste using a coke oven is a method for charging organic waste to the carbonization chamber of a coke oven useful for producing coke of steelmaking and subjecting the organic waste to carbonization and thermal decomposition. Coke is charged into the carbonization chamber to a predetermined level to form bed coke, the bed coke is heated to a fixed temperature, the organic waste is charged into the carbonization chamber, thermally decomposed and the residue of the thermally decomposed organic waste is discharged to the outside of the coke oven together with the coke. The residue of the organic waste discharged from the coke oven and the coke are cooled and separated and the separated coke is preferably used as a fuel and/or a reducing agent. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、コークス炉を用いた有機系廃棄物の再資源化方法に関する。   The present invention relates to a method for recycling organic waste using a coke oven.

高炉等で使用する製鉄用コークスを製造するためのコークス炉を用いて廃棄プラスチックを処理するための技術が知られている（例えば、特許文献１、特許文献２参照。）。コークス炉内で廃棄プラスチックと共に石炭を乾留することで、コークスとともに廃棄プラスチックに由来する燃料ガス、タール等を得ることができる。   Techniques for treating waste plastics using a coke oven for producing iron-making coke used in a blast furnace or the like are known (see, for example, Patent Document 1 and Patent Document 2). By co-distilling coal with waste plastic in a coke oven, fuel gas, tar, etc. derived from waste plastic can be obtained together with coke.

しかし一方で廃棄プラスチックをコークス炉で処理する場合には、廃プラスチックはコークス品質を規定する成分が乏しく、多種銘柄の石炭配合を変更しない場合にはコークス品質が低下する問題があるため、廃棄プラスチックの処理量に限界があることが知られている（例えば、特許文献３参照。）。また、廃プラスチックは揮発性成分が多いためコークス生産性が低下する問題もある。特許文献３によれば、廃棄プラスチックをコークス製造用装入炭の１．０ｍａｓｓ％超配合して処理するとコークス強度が低下する。低強度のコークスは高炉等での使用には不適格であり、したがって、製鉄用コークスを製造するコークス炉においては、廃棄プラスチックの石炭に対する配合率には限界がある。特許文献３では、この問題を解決するために、廃プラスチックを石炭に０．１〜１．０ｍａｓｓ％配合する、あるいは石炭装入直後または、石炭乾留時に廃プラスチックを炉頂空間部に装入する方法が開示されており、これにより多量の廃棄プラスチックをコークス炉で処理することが可能であるとしている。   On the other hand, when waste plastic is processed in a coke oven, waste plastic has few components that define the coke quality, and there is a problem that the coke quality deteriorates if the blending of various types of coal is not changed. It is known that there is a limit to the amount of processing (see, for example, Patent Document 3). Moreover, since waste plastic has many volatile components, there also exists a problem that coke productivity falls. According to Patent Document 3, when waste plastic is mixed with more than 1.0 mass% of coking coal charging coal, the coke strength is lowered. Low-strength coke is unsuitable for use in a blast furnace or the like. Therefore, in a coke oven for producing iron-making coke, there is a limit to the mixing ratio of waste plastic to coal. In Patent Document 3, in order to solve this problem, 0.1 to 1.0 mass% of waste plastic is blended with coal, or immediately after charging coal or during coal dry distillation, waste plastic is charged into the furnace top space. A method is disclosed that states that large amounts of waste plastic can be processed in a coke oven.

特公昭４９−１０３２１号公報Japanese Patent Publication No.49-10321 特開昭５９−１２０６８２号公報JP 59-120682 A 特開平８−１５７８３４号公報（第２頁）Japanese Patent Laid-Open No. 8-155784 (2nd page)

特許文献３に記載の方法では、コークス炉の炉頂空間部の体積が小さいので廃棄プラスチック処理量に限界がある。多量の廃棄プラスチックを処理するためにコークス製造中のコークス炉の炉頂空間部の体積を大きくすると、相対的に装入される石炭量が少量となり、炉内充填密度が低下して生産されるコークス強度が低下し、また生産性も低下する。また、コークス炉の上部の炉頂空間部付近に装入された石炭は炉頂空間部の廃棄プラスチックの影響を受けて、やはり強度が低下するため、コークス強度を低下させずに多量の廃プラスチック処理を行うことは困難である。また、炭化室に廃プラスチックのみ装入して熱分解する方法も考えられるが、生成したチャー類の炉内からの排出は既存の押し出し装置では非常に困難である。   In the method described in Patent Document 3, the volume of waste plastic is limited because the volume of the top space of the coke oven is small. When the volume of the top space of the coke oven during coke production is increased in order to process a large amount of waste plastic, the amount of coal charged is relatively small, and the filling density in the furnace is reduced and produced. Coke strength decreases and productivity also decreases. Also, the coal charged near the top space of the top of the coke oven is affected by the waste plastic in the top space, and the strength is also reduced. Therefore, a large amount of waste plastic can be obtained without reducing the coke strength. It is difficult to process. A method of charging only the waste plastic into the carbonization chamber and carrying out thermal decomposition is also conceivable, but it is very difficult to discharge the produced char from the furnace with the existing extrusion apparatus.

したがって本発明の目的は、このような従来技術の課題を解決し、製鉄用のコークス製造用のコークス炉を用いて、多量の廃棄プラスチック等の廃棄物を再資源化処理できる、コークス炉を用いた有機系廃棄物の再資源化方法を提供することにある。   Accordingly, an object of the present invention is to solve such problems of the prior art and use a coke oven that can recycle a large amount of waste such as plastic waste using a coke oven for producing coke for iron making. It is to provide a method for recycling organic waste.

このような課題を解決するための本発明の特徴は以下の通りである。
（１）有機系廃棄物を製鉄用コークス製造に用いるコークス炉の炭化室に装入して、乾留熱分解することにより処理する方法であって、前記炭化室にコークスを所定のレベルまで装入してベッドコークスを形成し、該ベッドコークスを所定の温度まで加熱した後、前記有機系廃棄物を前記炭化室に装入して熱分解し、該熱分解された有機系廃棄物の残渣をコークスと共にコークス炉外に排出することを特徴とするコークス炉を用いた有機系廃棄物の再資源化方法。
（２）ベッドコークスを形成するコークスの粒径が１００ｍｍ以下であることを特徴とする（１）に記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（３）コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離されたコークスをベッドコークスとして再利用することを特徴とする（１）または（２）に記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（４）コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離されたコークスを燃料および／または還元剤として利用することを特徴とする（１）または（２）に記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（５）コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離された有機系廃棄物の残渣を製鉄工程で利用することを特徴とする（１）ないし（４）のいずれかにに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（６）有機系廃棄物を熱分解する際に発生したガスを冷却すると同時に、ガス中の不純物を除去して、清浄なガスとして利用することを特徴とする（１）ないし（５）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（７）有機系廃棄物を熱分解する際に発生したタール類を回収して利用することを特徴とする（１）ないし（６）のいずれかにに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（８）有機系廃棄物を所定の大きさに破砕または粉砕し、異物を除去した後にコークス炉に装入することを特徴とする（１）ないし（７）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（９）有機系廃棄物が炭化室内で熱分解することにより形成される炉内空間の体積に応じて、さらに廃棄物をコークス炉内に装入する工程を複数回繰り返すことを特徴とする（１）ないし（８）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（１０）炭化室内の温度を所定の範囲内に保持するように有機系廃棄物を装入することを特徴とする（９）に記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（１１）コークス炉が複数の炭化室を有し、該炭化室のうち一部の炭化室のみに有機系廃棄物を装入することを特徴とする（１）ないし（１０）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（１２）コークス炉が複数の炭化室を有し、該複数の炭化室の全ての炭化室に有機系廃棄物を装入することを特徴とする（１）ないし（１０）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。
（１３）有機系廃棄物の水分含有量を２〜３０ｍａｓｓ％に調整することを特徴とする（１）ないし（１２）のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。 The features of the present invention for solving such problems are as follows.
(1) A method in which organic waste is charged into a carbonization chamber of a coke oven used for the production of coke for iron making, and is treated by dry distillation pyrolysis, in which the coke is charged to a predetermined level. After forming the bed coke and heating the bed coke to a predetermined temperature, the organic waste is charged into the carbonization chamber and pyrolyzed, and the residue of the pyrolyzed organic waste is removed. A method for recycling organic waste using a coke oven, wherein the coke oven is discharged together with the coke.
(2) The method for recycling organic waste using the coke oven according to (1), wherein the particle size of coke forming the bed coke is 100 mm or less.
(3) The organic waste residue discharged from the coke oven and coke are separated after cooling, and the separated coke is reused as bed coke. (1) or (2) To recycle organic waste using a coke oven.
(4) A residue of organic waste discharged from a coke oven and coke are separated after cooling, and the separated coke is used as a fuel and / or a reducing agent (1) or (2) ) Recycling method for organic waste using the coke oven.
(5) The organic waste residue discharged from the coke oven and the coke are separated after cooling, and the separated organic waste residue is used in the iron making process (1) to ( 4) A method for recycling organic waste using the coke oven according to any one of 4).
(6) Any one of (1) to (5), wherein the gas generated when pyrolyzing the organic waste is cooled, and at the same time, impurities in the gas are removed and used as a clean gas. A method for recycling organic waste using the coke oven according to claim 1.
(7) The organic waste using the coke oven according to any one of (1) to (6), wherein tars generated when pyrolyzing the organic waste are recovered and used. How to recycle things.
(8) The coke oven according to any one of (1) to (7), wherein the organic waste is crushed or pulverized to a predetermined size, foreign matter is removed, and the coke oven is charged. Recycling method of organic waste used.
(9) According to the volume of the furnace space formed by pyrolyzing the organic waste in the carbonization chamber, the process of charging the waste into the coke oven is repeated a plurality of times ( A method for recycling organic waste using the coke oven according to any one of 1) to (8).
(10) The organic waste recycling method using the coke oven according to (9), wherein the organic waste is charged so as to keep the temperature in the carbonization chamber within a predetermined range. .
(11) The coke oven has a plurality of carbonization chambers, and only one of the carbonization chambers is charged with organic waste in any one of (1) to (10) A method for recycling organic waste using the described coke oven.
(12) The coke oven has a plurality of carbonization chambers, and the organic waste is charged into all the carbonization chambers of the plurality of carbonization chambers. (1) to (10) To recycle organic waste using a coke oven.
(13) Recycling organic waste using the coke oven according to any one of (1) to (12), wherein the water content of the organic waste is adjusted to 2 to 30 mass%. Method.

本発明によれば、コークス炉において多量の有機系廃棄物の効率的な再資源化処理が可能となる。さらに再資源化物であるチャー類、生成ガス、タール類あるいはベッドコークスを製鉄所内外で有効に活用することが可能であり、地球環境対策上も優れた方法である。このように本発明を適用すれば炭酸ガス削減による地球温暖化防止や廃棄物の再資源化による資源の有効利用、省資源、省エネルギー、さらに埋め立て削減による環境負荷の低減など、環境保全に多大な効果がある。   According to the present invention, it is possible to efficiently recycle a large amount of organic waste in a coke oven. Furthermore, chars, product gas, tars or bed coke, which are recycled materials, can be used effectively inside and outside the steelworks, and it is an excellent method for global environmental measures. In this way, if the present invention is applied, there is a great deal of environmental conservation, such as prevention of global warming by reducing carbon dioxide, effective use of resources by recycling waste, resource saving, energy saving, and reduction of environmental burden by landfill reduction. effective.

本発明では、炭素、水素、酸素、窒素、塩素、硫黄および灰分、水分を主成分とする、廃プラスチック、廃木材等の有機系廃棄物（以下、単に「廃棄物」と記載する。）を製鉄用コークス製造に用いるコークス炉に上部より装入し、乾留熱分解することにより生成する、発生ガス、タール類および炭化物を主体とする熱分解残渣（以下、「チャー類」と記載する。）等を回収、利用することにより廃棄物を再資源化する。   In the present invention, organic waste such as waste plastic and waste wood (hereinafter simply referred to as “waste”) mainly composed of carbon, hydrogen, oxygen, nitrogen, chlorine, sulfur, ash, and moisture. Pyrolysis residue mainly composed of evolved gas, tars and carbides (hereinafter referred to as “chars”) produced by charging into a coke oven used for producing coke for iron making from the top and pyrolyzing pyrolysis. Recycling wastes by collecting and using them.

廃棄物を装入するコークス炉の炭化室には、予め炭化室内にコークスを所定のレベルまで装入し（以下、コークス炉内に装入したコークスを「ベッドコークス」と記載する。）所定の温度まで加熱した後に、廃棄物を炭化室の上部より装入し、乾留熱分解する。そして、熱分解されたチャー類をコークスと共にコークス炉外に排出する。   The coke oven of the coke oven in which the waste is charged is previously charged with the coke to a predetermined level (hereinafter, the coke charged in the coke oven is referred to as “bed coke”). After heating to temperature, the waste is charged from the top of the carbonization chamber and pyrolyzed pyrolysis. The pyrolyzed chars are discharged out of the coke oven together with the coke.

ベッドコークスに用いるコークスは炭化室からの押し出し機による排出時スムーズな排出が可能となるよう粒径１００ｍｍ以下とすることが望ましい。   It is desirable that the coke used for the bed coke has a particle size of 100 mm or less so that it can be smoothly discharged when discharged from the carbonization chamber by an extruder.

また、廃棄物は、事前に所定の大きさまで破砕または粉砕し、異物を除去したもの、あるいはそれらを造粒、または塊状に成形したものを用いることが望ましい。   In addition, it is desirable to use waste that has been crushed or pulverized to a predetermined size and removed foreign matters, or that has been granulated or formed into a lump.

廃棄物のコークス炉への装入は、廃棄物がコークス炉内で熱分解・体積収縮により形成される炉内空間の体積に応じて、予め定められた量に計量された廃棄物を一度に装入する工程（バッチ装入）か、または連続的に装入する工程（連続装入）かを、チャー類が炉内所定レベルに達するまで複数回繰り返すことが好ましい。   The waste is charged into the coke oven at a time when the waste is weighed to a predetermined amount according to the volume of the furnace space formed by pyrolysis and volume contraction in the coke oven. It is preferable to repeat the charging step (batch charging) or the continuous charging step (continuous charging) a plurality of times until the chars reach a predetermined level in the furnace.

また、廃棄物をコークス炉へ複数回装入する際には、コークス炉内の温度を所定の範囲内に保持するように装入することが望ましい。   In addition, when charging waste into the coke oven multiple times, it is desirable to charge the coke oven so that the temperature in the coke oven is maintained within a predetermined range.

上記のようにして廃棄物をコークス炉で処理することで、廃棄物を高速処理することが可能であり、大量の廃棄物をリサイクルすることが可能となる。   By treating the waste in the coke oven as described above, the waste can be processed at a high speed, and a large amount of waste can be recycled.

また、廃棄物のコークス炉への装入を繰り返して、コークス炉内のチャー類の量が増加して、ベッドコークスとチャー類が炉内の所定高さまで到達した場合には、炉内を沈静化、均質化させるためさらに所定時間保持した後に、ベッドコークスとチャー類を押し出し装置により同時にコークス炉より排出することが望ましい。   In addition, if the amount of char in the coke oven increases due to repeated charging of the waste into the coke oven, and bed coke and char reach a predetermined height in the oven, the inside of the oven is calmed down. It is desirable that the bed coke and the chars are simultaneously discharged from the coke oven by an extrusion device after holding for a predetermined time to make them uniform.

コークス炉は通常複数の炭化室を有するものであるが、コークス炉の炭化室のうち一部の炭化室のみに廃棄物を装入することが望ましい。一方で、コークス炉の複数の炭化室の全ての炭化室に廃棄物を装入することも効果がある。それぞれの場合の効果については後述する。   A coke oven usually has a plurality of carbonization chambers, but it is desirable to charge waste into only some of the carbonization chambers of the coke oven. On the other hand, it is also effective to charge the waste into all the carbonization chambers of the plurality of carbonization chambers of the coke oven. The effect in each case will be described later.

コークス炉から押しだされて排出されたベッドコークスおよびチャー類は、冷却装置等で冷却後、コークス、チャー類を篩い分け装置等を用いて分離し、分離されたコークスを再度ベッドコークスとして利用するかまたは、高炉あるいはキュポラ、あるいはガス化溶融炉などの燃料、還元剤などに利用することが望ましい。また、篩い分け装置等を用いて分離されたチャー類は、石炭と配合してコークス製造に供する、鉄鉱石と混合して焼結鉱製造プロセスの燃料として供する、石炭代替として高炉羽口より吹き込む、溶銑、溶鋼の保熱材として供するなど製鉄工程で利用することが望ましい。   The bed coke and chars pushed out from the coke oven and cooled are cooled by a cooling device, etc., and then the coke and chars are separated using a sieving device etc., and the separated coke is used again as bed coke. Alternatively, it is desirable to use the fuel for a blast furnace or cupola, or a gasification melting furnace, a reducing agent, or the like. Chars separated using a sieving device are mixed with coal for coke production, mixed with iron ore and used as fuel for the sinter production process, and blown from the blast furnace tuyere as a substitute for coal It is desirable to use it in the iron making process, for example, as a heat insulating material for hot metal and molten steel.

廃棄物をコークス炉内で乾留熱分解する際に発生した一酸化炭素、水素、メタン等を成分とするガスは、付帯の設備等を用いて冷却すると同時に、ガス中の不純物を除き清浄なガスとして利用することが望ましい。   Gas containing carbon monoxide, hydrogen, methane, etc., generated during pyrolysis of waste in a coke oven, is cooled using ancillary equipment, etc. It is desirable to use as.

また、廃棄物をコークス炉内で乾留熱分解する際に発生したタール類を回収して、有効に利用することが望ましい。   In addition, it is desirable to recover tars generated when pyrolyzing pyrolysis of waste in a coke oven and use it effectively.

さらに、発生したチャー類がコークス炉内レンガに付着、成長することを防止するために、有機系廃棄物の水分含有量を２〜３０ｍａｓｓ％に調整することが望ましい。予め廃棄物に水分を２〜３０ｍａｓｓ％含有させるか、または炉内に装備された装置により水蒸気または水を炉内に装入した廃棄物に所定量噴霧することで、水分含有量を調整可能である。   Furthermore, in order to prevent generated chars from adhering to and growing on the bricks in the coke oven, it is desirable to adjust the water content of the organic waste to 2 to 30 mass%. It is possible to adjust the moisture content by preliminarily containing 2-30 mass% of moisture in the waste, or spraying a predetermined amount of water vapor or water on the waste charged in the furnace with the equipment installed in the furnace. is there.

以下、本発明をより詳細に説明する。   Hereinafter, the present invention will be described in more detail.

（廃棄物の事前処理について）廃棄物は通常さまざまな大きさであり、さまざまな物質を含んでいる。そこで廃棄物を炭化室に装入するにあたって、事前処理を行うことによって再資源化処理の速度、効率を高めることが望ましい。図１に廃棄物の事前加工処理の一実施形態のフローを示す。廃棄物は破砕・異物（金属類、土砂類など）除去・塩化ビニル除去を行った後、成型機によって３〜３０ｍｍ程度の大きさに成型され、最終的に調湿される。   (Waste pre-treatment) Wastes are usually of various sizes and contain various substances. Therefore, it is desirable to increase the speed and efficiency of the recycling process by performing pretreatment when charging the waste into the carbonization chamber. FIG. 1 shows a flow of an embodiment of waste pre-processing. The waste is crushed, foreign matter (metals, earth and sand, etc.) is removed and vinyl chloride is removed, and then molded into a size of about 3 to 30 mm by a molding machine, and finally conditioned.

（実施の概略形態）本発明の一実施形態の概略を図２を用いて説明する。コークス炉は炭化室３と燃焼室４からなる。１は装炭車であり、炭化室３に装入する原料を搬送する。燃焼室４で燃焼された高温ガスが耐火隔壁レンガを加熱し、当該レンガからの伝熱により、炭化室３の上部にある装入孔２より装入されたコークス（ベッドコークス５）は加熱される。コークス装入直後温度は一旦低下するがその後回復するのを待って廃棄物６を同じ装入口２より装入する。廃棄物６は蒸し焼きにされ該熱分解で生成する炭化物を主成分とする残渣（チャー類）、生成ガス、タール類などに熱分解され、体積は大幅に収縮する。廃棄物６の装入を複数回繰り返した後ベッドコークス５とチャー類を押し出し機７を用いて炉外に排出する。排出されたベッドコークス５、チャー類は図３に示す方法で篩い分けられそれぞれ再利用される。なお、ベッドコークス５の役割はコークス炉窯内炉底、炉下部の耐火物を保護するとともに、押し出し設備によるチャー類の炉外への排出（窯出し）を円滑に行うことである。従ってベッドコークス５には高炉用の高強度のものを用いることが当然可能であるが、高炉用に適さないものであっても窯出し可能な最低限の強度（１５回転ドラム強度指数で８０以上）あるいは粒度を有するコークスであれば使用可能である。   (Summary of Embodiment) The outline of an embodiment of the present invention will be described with reference to FIG. The coke oven comprises a carbonization chamber 3 and a combustion chamber 4. Reference numeral 1 denotes a charcoal vehicle that conveys the raw material charged into the carbonization chamber 3. The high-temperature gas burned in the combustion chamber 4 heats the refractory partition brick, and the coke (bed coke 5) charged from the charging hole 2 at the top of the carbonization chamber 3 is heated by heat transfer from the brick. The Immediately after the coke is charged, the temperature once decreases, but after waiting for recovery, the waste 6 is charged from the same charging port 2. The waste 6 is steamed and pyrolyzed into residues (chars) mainly composed of carbides produced by the thermal decomposition (chars), product gas, tars, etc., and the volume is greatly shrunk. After charging the waste 6 a plurality of times, the bed coke 5 and the char are discharged out of the furnace using the extruder 7. The discharged bed coke 5 and char are sieved by the method shown in FIG. 3 and reused. The role of the bed coke 5 is to protect the refractories at the bottom and bottom of the coke oven, and to smoothly discharge the chars out of the furnace (exit the kiln) using an extrusion facility. Accordingly, it is possible to use a high strength for the bed coke 5 for the blast furnace, but even if it is not suitable for the blast furnace, the minimum strength (15 or more drum strength index is 80 or more) that can be fired. Or coke having a particle size can be used.

（発明の時系列的な状態）以下、図４を用いて本発明の一実施形態を時系列的な状態で説明する。図４において、状態Ａに示すように高温状態になっている炭化室３内にあらかじめ製造された１００ｍｍ以下程度の大きさのコークスを炉底より所定のレベル（有効炉高の１／３程度）まで装入する。上記で説明した機能を有するこのベッドコークス５は所定の温度（８００〜１０００℃）まで加熱される。廃棄物６の下に何も装入しない状態で炭化室に廃棄物６を装入して熱分解すると廃棄物６の残渣が炉底や炉壁に付着してしまい、炉外への排出が困難となるが、炭化室３の下部にコークス５を装入し、その上に廃棄物６を装入することで、廃棄物６の残渣をコークスと共に炭化室３外に排出でき廃棄物６の付着の問題を解決できる。   (Time-series state of the invention) Hereinafter, an embodiment of the present invention will be described in a time-series state with reference to FIG. In FIG. 4, a coke having a size of about 100 mm or less produced in advance in the carbonization chamber 3 which is in a high temperature state as shown in the state A is a predetermined level (about 1/3 of the effective furnace height) from the furnace bottom. Charge until. The bed coke 5 having the function described above is heated to a predetermined temperature (800 to 1000 ° C.). If nothing is charged under the waste 6 and the waste 6 is charged into the carbonization chamber and pyrolyzed, the residue of the waste 6 adheres to the furnace bottom and the furnace wall, and is discharged outside the furnace. Although it becomes difficult, by charging the coke 5 in the lower part of the carbonization chamber 3 and charging the waste 6 thereon, the residue of the waste 6 can be discharged out of the carbonization chamber 3 together with the coke. Can solve the adhesion problem.

次に状態Ｂに示すようにベッドコークス５投入後第一回目の廃棄物６を所定量装入する。この場合、コークス炉に装入する廃棄物６としては、一般廃棄物、産業廃棄物等の通常の有機物を主体とする廃棄物を用いることができる。廃棄プラスチックを主体とする廃棄物の場合熱分解生成物の収率が高いのでさらに好ましい。   Next, as shown in state B, a predetermined amount of the waste 6 is charged after the bed coke 5 is charged. In this case, as the waste 6 charged in the coke oven, waste mainly composed of ordinary organic matter such as general waste and industrial waste can be used. In the case of waste mainly composed of waste plastic, the yield of pyrolysis products is high, which is more preferable.

状態Ｃに示すように廃棄物は炭化室３内で熱分解して炭化物類、乾留生成ガス、タール類等となり、体積収縮して乾留生成物（チャー類）１２となり、炭化室の上部に空間が形成される。   As shown in state C, the waste is thermally decomposed in the carbonization chamber 3 to become carbides, dry distillation gas, tars, etc., and shrinks in volume to become dry distillation products (chars) 12, and is disposed in the upper part of the carbonization chamber. Is formed.

この空間にさらに新たに処理する廃棄物６を装入することが可能である。なお、廃棄物６の熱分解の終了は、コークス炉からの発生ガスをモニターすることで把握できる。石炭の乾留時（通常のコークス炉操業時）に同時に廃棄物処理を行う場合は、石炭の乾留過程でもガスが発生するため、廃棄物処理の終了時点の見極めが困難であり、廃棄物をコークス炉に効率良く追加投入することは困難である。   It is possible to insert waste 6 to be newly treated into this space. The end of thermal decomposition of the waste 6 can be grasped by monitoring the gas generated from the coke oven. If waste is treated simultaneously with coal during carbonization (during normal coke oven operation), gas is also generated during the coal distillation process, making it difficult to determine the end of waste treatment. It is difficult to efficiently add to the furnace.

以上のように廃棄物装入―乾留熱分解収縮―装入を所定時間置いて複数回繰り返し（状態Ｄ〜Ｆ）、廃棄物の新規装入が困難になるまで行うことにより、高速かつ大量かつ効率的に廃棄物を再資源化処理することができる。   As described above, waste charging-pyrolysis shrinkage-charging is repeated a plurality of times for a predetermined time (states D to F), and it is performed until new charging of waste becomes difficult. Waste can be efficiently recycled.

状態Ｇで示すように、廃棄物６の装入をｎ回行い、乾留生成物であるチャー類が炭化室の所定のレベルまで積み上がって新規装入が困難となった時点で押し出し装置により炭化室内のコークス、チャー類を排出し炭化室３を空にする（状態Ｈ）。その後、状態Ａに戻り一連の操作を繰り返す。なお、廃棄物６をコークス炉３に装入後に、必要に応じて、廃棄物６の上部にさらにコークスを再装入して、廃棄物３をコークスでサンドイッチした状態とすることも可能である。例えばフィルム状の廃棄プラスチックのような非常に軽い廃棄物等は飛散する恐れがあり、廃棄物６の上部にさらにコークスを再装入することで飛散を防止し、廃棄物６の処理効率を向上させることができる。これらの一連の操作においては、炭化室３内の温度が図４の上部のグラフに示すように所定の範囲内（例えば８００〜１０００℃）におさまるように燃焼室の燃焼ガスの制御により保持しながら行う。   As shown in the state G, the waste 6 is charged n times, and when the chars as the dry distillation products are piled up to a predetermined level in the carbonization chamber and new charging becomes difficult, carbonization is performed by an extrusion device. The coke and chars in the room are discharged and the carbonization chamber 3 is emptied (state H). Then, it returns to the state A and repeats a series of operations. In addition, after charging the waste 6 into the coke oven 3, it is possible to recharge the coke above the waste 6 as necessary, so that the waste 3 is sandwiched with coke. . For example, very light waste such as plastic waste in the form of a film may be scattered. By recharging the coke on the top of the waste 6, scattering is prevented and the processing efficiency of the waste 6 is improved. Can be made. In these series of operations, the temperature in the carbonization chamber 3 is maintained by controlling the combustion gas in the combustion chamber so as to fall within a predetermined range (for example, 800 to 1000 ° C.) as shown in the upper graph of FIG. While doing.

以上は廃棄物をバッチ装入する場合の操作について述べたが、廃棄物を連続的に装入することも可能である。また、排出されたコークス、チャー類は図３に示すように、冷却後スクリーンでコークス、チャー類に篩い分け、後述するように有効に利用することが望ましい。   The operation in the case of batch charging waste has been described above, but it is also possible to continuously charge waste. Further, as shown in FIG. 3, it is desirable that the discharged coke and chars are screened into coke and chars after cooling and effectively used as described later.

（処理窯数）通常、コークス炉は複数の炭化室を有するが、複数の炭化室のうち一部の炭化室のみにコークスと廃棄物とを装入することが望ましい。一部の炭化室の利用のみでも多量の廃棄物を処理できるので、廃棄物処理専用の炭化室とコークス製造用の炭化室とを分離することができ、高炉用のコークスを高炉の操業に十分な量安定して製造しながら、廃棄物処理を行うことができる。一方で、必要に応じて、複数の炭化室の全ての炭化室にコークスと廃棄物とを装入することも可能である。これにより短期間に非常に多量の廃棄物を処理することができる。高炉用のコークスを製造する設備であるコークス炉において、一定期間のみ廃棄物処理を行い、残りの期間は高炉用のコークスのみを製造することで、製造される高炉用コークスの品質も安定する。   (Number of treatment kilns) Usually, a coke oven has a plurality of carbonization chambers, but it is desirable to charge coke and waste into only some of the carbonization chambers. Since a large amount of waste can be processed by using only some of the carbonization chambers, the carbonization chamber dedicated to waste treatment and the carbonization chamber for coke production can be separated, and coke for the blast furnace is sufficient for blast furnace operation. Waste treatment can be performed while producing a stable amount. On the other hand, if necessary, coke and waste can be charged into all the carbonization chambers of the plurality of carbonization chambers. Thereby, a very large amount of waste can be treated in a short time. In a coke oven, which is a facility for producing coke for blast furnace, waste is treated only for a certain period, and only the coke for blast furnace is produced for the remaining period, thereby stabilizing the quality of the produced blast furnace coke.

（コークス、チャー類、生成ガス、タール類の利用）排出されたコークスおよびチャー類、生成ガス、タール類を利用する際の一実施形態を図３を参照しながら説明する。上述のように炭化室から排出され、篩い分けられたコークスは本発明におけるコークスベッドとして再度炭化室に装入して繰り返し利用することが可能である。あるいは、高強度を有するコークスは高炉に装入して還元剤として利用することが可能である。またガス化溶融炉の燃料として使用するコークスは、高炉で使用するコークスほどの高強度を有する必要もなく、廃棄物の残渣が付着している場合も問題がないため、廃棄物を処理する際に排出されたコークスは、ガス化溶融炉の燃料として多量に好適に使用できる。一方、乾留生成物の１つであるチャー類は燃料等に利用される。チャー類はたとえば、製鉄所の中で、鉄鉱石を焼き固める焼結鉱製造工程において燃料として利用することができる。また、高炉の羽口から吹き込むことにより微粉炭またはコークス代替としても利用可能である。あるいは、原料炭と混合してコークス製造用の原料として用いることもできる。乾留生成ガス、タール類は、石炭乾留により生成した乾留生成ガス、タール類と混合され従来通りの所定の処理をされた後、従来と同様に利用できる。一酸化炭素、水素、メタン、などを主成分とする乾留ガスは既存のコークス炉のガス処理設備を用いて清浄化され製鉄所のエネルギー源として利用される。またガス中のタール分は従来どおり回収され利用される。   (Utilization of Coke, Chars, Generated Gas, Tars) One embodiment of using discharged coke and chars, generated gas, tars will be described with reference to FIG. As described above, the coke discharged from the carbonization chamber and sieved can be repeatedly used as a coke bed in the present invention by being charged again. Alternatively, coke having high strength can be charged into a blast furnace and used as a reducing agent. In addition, coke used as fuel for gasification melting furnaces does not have to be as strong as coke used in blast furnaces, and there is no problem even when waste residues are attached. The coke discharged in can be suitably used in large quantities as fuel for the gasification melting furnace. On the other hand, chars which are one of the carbonization products are used as fuel. For example, char can be used as a fuel in a sinter manufacturing process in which iron ore is baked and solidified in an ironworks. It can also be used as an alternative to pulverized coal or coke by blowing from the blast furnace tuyeres. Alternatively, it can be mixed with raw coal and used as a raw material for coke production. The dry distillation product gas and tars can be used in the same manner as before after being mixed with the dry distillation product gas and tars produced by coal dry distillation and subjected to a predetermined treatment as usual. The dry distillation gas mainly composed of carbon monoxide, hydrogen, methane, etc. is cleaned using the gas processing equipment of the existing coke oven and used as an energy source for steelworks. The tar content in the gas is recovered and used as usual.

製鉄原料製造用のコークス炉による試験を行った。廃棄物として比較的嵩密度の小さい廃棄プラスチックを上記の本発明の方法で処理する場合、炭化室一室（窯）当りで平均して１時間あたり３トン程度の廃棄物を処理することが可能であり、効率的に廃棄物が処理できた。このように本発明によれば廃棄物を高速すなわち、大量に再資源化処理することができる。   A test was conducted using a coke oven for producing steelmaking raw materials. When waste plastic with a relatively low bulk density is treated as waste by the above-described method of the present invention, it is possible to treat waste of about 3 tons per hour on average per carbonization chamber (kiln). And waste could be processed efficiently. Thus, according to the present invention, waste can be recycled at high speed, that is, in large quantities.

また、３〜１０ｍｍ程度の粒径に破砕処理または造粒した廃プラスチックを１バッチで４トン装入すると８０分程度（図４のｔ１の時間に相当）と短時間に熱分解を完了することがわかった。すなわち本発明によれば、乾留ガス化速度は十分大きく短時間に再資源化処理が可能であることがわかる。   In addition, when 4 tons of waste plastic crushed or granulated to a particle size of about 3 to 10 mm is charged in one batch, thermal decomposition is completed in a short time of about 80 minutes (corresponding to the time t1 in FIG. 4). I understood. That is, according to the present invention, it can be understood that the recycle gasification rate is sufficiently high and the recycling process can be performed in a short time.

また、１バッチ４トンずつ９回装入した、廃棄物処理１サイクルに要する時間（図４において、状態ＡからＨの１サイクルの時間ｔ２に相当）は１２時間程度であり、処理量は一日約７０トンであった。したがって、現在使用されているコークス炉１窯を用いて、時間あたり平均３トン、年間約２６０００トンの再資源化処理を効率的に行うことが可能である。一方従来技術のように石炭と混合して廃棄物再資源化処理を行う場合、石炭の乾留時間（通常２０時間以上）によって廃棄物処理時間が律速されるため、たとえば石炭中に１ｍａｓｓ％廃棄物を混合したとして１窯あたりの年間再資源化処理量は１３０トンであり、本発明の２６０００トンと比較すると大幅に少ない。別の見方をすれば、同じ量の廃棄物を処理するのに従来技術では本発明に比べて２００倍の窯数が必要である。本発明では石炭の乾留を行う必要がないため上記のように数時間程度で処理が完了でき、１窯あたりの廃棄物再資源化処理効率、速度が非常に大きく向上する。   Further, the time required for one cycle of waste treatment in which 4 tons of batches are charged 9 times (corresponding to time t2 of one cycle from state A to H in FIG. 4) is about 12 hours, and the processing amount is one. It was about 70 tons per day. Therefore, it is possible to efficiently carry out a recycling process of an average of 3 tons per hour and about 26000 tons per year using one currently used coke oven. On the other hand, when the waste recycling treatment is performed by mixing with coal as in the prior art, the waste treatment time is limited by the coal carbonization time (usually 20 hours or more), so, for example, 1 mass% waste in coal. As a result, the annual recycling amount per kiln is 130 tons, which is much smaller than 26,000 tons of the present invention. Viewed another way, the prior art requires 200 times more kilns than the present invention to process the same amount of waste. In the present invention, since it is not necessary to perform carbonization of coal, the treatment can be completed in several hours as described above, and the waste recycling treatment efficiency and speed per kiln are greatly improved.

有機物系廃棄物の事前加工処理の一実施形態のフロー。The flow of one Embodiment of the pre-processing of an organic waste. 本発明の一実施形態を示す概略図。Schematic which shows one Embodiment of this invention. 炭化室から排出したコークス、チャー類の利用フロー。Use flow of coke and chars discharged from the carbonization chamber. 本発明の一実施形態の時系列的な説明図。The time-series explanatory drawing of one Embodiment of this invention.

符号の説明Explanation of symbols

１ 装炭車
２ 装入口
３ 炭化室
４ 燃焼室
５ ベッドコークス
６ 有機系廃棄物
７ 押し出し機
８ ガイド車
９ 燃焼ガス
１０ 乾留生成ガス
１１ アンモニア水
１２ 乾留生成物（チャー類） DESCRIPTION OF SYMBOLS 1 Charcoal vehicle 2 Charging inlet 3 Carbonization chamber 4 Combustion chamber 5 Bed coke 6 Organic waste 7 Extruder 8 Guide vehicle 9 Combustion gas 10 Dry distillation product gas 11 Ammonia water 12 Dry distillation product (chars)

Claims (13)

有機系廃棄物を製鉄用コークス製造に用いるコークス炉の炭化室に装入して、乾留熱分解することにより処理する方法であって、前記炭化室にコークスを所定のレベルまで装入してベッドコークスを形成し、該ベッドコークスを所定の温度まで加熱した後、前記有機系廃棄物を前記炭化室に装入して熱分解し、該熱分解された有機系廃棄物の残渣をコークスと共にコークス炉外に排出することを特徴とするコークス炉を用いた有機系廃棄物の再資源化方法。   A method in which organic waste is charged into a carbonization chamber of a coke oven used for the manufacture of coke for iron making, and is processed by pyrolysis, and the coke is charged to a predetermined level in the carbonization chamber. After forming coke and heating the bed coke to a predetermined temperature, the organic waste is charged into the carbonization chamber and pyrolyzed, and the residue of the pyrolyzed organic waste is coke with coke. A method for recycling organic waste using a coke oven, which is discharged outside the furnace. ベッドコークスを形成するコークスの粒径が１００ｍｍ以下であることを特徴とする請求項１に記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The method for recycling organic waste using a coke oven according to claim 1, wherein the coke forming the bed coke has a particle size of 100 mm or less. コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離されたコークスをベッドコークスとして再利用することを特徴とする請求項１または請求項２に記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The coke oven according to claim 1 or 2, wherein the residue of organic waste discharged from the coke oven and coke are separated after cooling, and the separated coke is reused as bed coke. Recycling method of organic waste using コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離されたコークスを燃料および／または還元剤として利用することを特徴とする請求項１または請求項２に記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The residue of organic waste discharged from the coke oven and coke are separated after cooling, and the separated coke is used as fuel and / or reducing agent. To recycle organic waste using a coke oven. コークス炉から排出された有機系廃棄物の残渣とコークスとを冷却後に分離し、該分離された有機系廃棄物の残渣を製鉄工程で利用することを特徴とする請求項１ないし請求項４のいずれかにに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   5. The organic waste residue and coke discharged from the coke oven are separated after cooling, and the separated organic waste residue is used in an iron making process. A method for recycling organic waste using a coke oven according to any one of the above. 有機系廃棄物を熱分解する際に発生したガスを冷却すると同時に、ガス中の不純物を除去して、清浄なガスとして利用することを特徴とする請求項１ないし請求項５のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   6. The gas generated when pyrolyzing organic waste is cooled, and at the same time, impurities in the gas are removed and used as a clean gas. To recycle organic waste using a coke oven. 有機系廃棄物を熱分解する際に発生したタール類を回収して利用することを特徴とする請求項１ないし請求項６のいずれかにに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The tars generated when pyrolyzing the organic waste are recovered and used, and the organic waste is recycled using the coke oven according to any one of claims 1 to 6. Recycling method. 有機系廃棄物を所定の大きさに破砕または粉砕し、異物を除去した後にコークス炉に装入することを特徴とする請求項１ないし請求項７のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The organic waste using the coke oven according to any one of claims 1 to 7, wherein the organic waste is crushed or pulverized to a predetermined size, and foreign matters are removed, and then the coke oven is charged. Recycling method for municipal waste. 有機系廃棄物が炭化室内で熱分解することにより形成される炉内空間の体積に応じて、さらに廃棄物をコークス炉内に装入する工程を複数回繰り返すことを特徴とする請求項１ないし請求項８のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The process of charging waste into a coke oven is repeated a plurality of times according to the volume of the furnace space formed by pyrolyzing the organic waste in the carbonization chamber. A method for recycling organic waste using the coke oven according to claim 8. 炭化室内の温度を所定の範囲内に保持するように有機系廃棄物を装入することを特徴とする請求項９に記載のコークス炉を用いた有機系廃棄物の再資源化方法。   10. The organic waste recycling method using a coke oven according to claim 9, wherein the organic waste is charged so as to keep the temperature in the carbonization chamber within a predetermined range. コークス炉が複数の炭化室を有し、該炭化室のうち一部の炭化室のみに有機系廃棄物を装入することを特徴とする請求項１ないし請求項１０のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The coke oven according to any one of claims 1 to 10, wherein the coke oven has a plurality of carbonization chambers, and only a part of the carbonization chambers is charged with organic waste. A method of recycling organic waste using a furnace. コークス炉が複数の炭化室を有し、該複数の炭化室の全ての炭化室に有機系廃棄物を装入することを特徴とする請求項１ないし請求項１０のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The coke oven according to any one of claims 1 to 10, wherein the coke oven has a plurality of carbonization chambers, and all the carbonization chambers of the plurality of carbonization chambers are charged with organic waste. Recycling method of organic waste using 有機系廃棄物の水分含有量を２〜３０ｍａｓｓ％に調整することを特徴とする請求項１ないし請求項１２のいずれかに記載のコークス炉を用いた有機系廃棄物の再資源化方法。   The method for recycling organic waste using a coke oven according to any one of claims 1 to 12, wherein the water content of the organic waste is adjusted to 2 to 30 mass%.
JP2004078690A 2004-03-18 2004-03-18 Method for recycling organic waste using coke oven Pending JP2005263983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004078690A JP2005263983A (en) 2004-03-18 2004-03-18 Method for recycling organic waste using coke oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004078690A JP2005263983A (en) 2004-03-18 2004-03-18 Method for recycling organic waste using coke oven

Publications (1)

Publication Number Publication Date
JP2005263983A true JP2005263983A (en) 2005-09-29

Family

ID=35088858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004078690A Pending JP2005263983A (en) 2004-03-18 2004-03-18 Method for recycling organic waste using coke oven

Country Status (1)

Country Link
JP (1) JP2005263983A (en)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9359554B2 (en) 2012-08-17 2016-06-07 Suncoke Technology And Development Llc Automatic draft control system for coke plants
WO2016109699A1 (en) * 2014-12-31 2016-07-07 Suncoke Technology And Development Llc Multi-modal beds of coking material
US9580656B2 (en) 2014-08-28 2017-02-28 Suncoke Technology And Development Llc Coke oven charging system
US9683740B2 (en) 2012-07-31 2017-06-20 Suncoke Technology And Development Llc Methods for handling coal processing emissions and associated systems and devices
US9862888B2 (en) 2012-12-28 2018-01-09 Suncoke Technology And Development Llc Systems and methods for improving quenched coke recovery
US10016714B2 (en) 2012-12-28 2018-07-10 Suncoke Technology And Development Llc Systems and methods for removing mercury from emissions
US10041002B2 (en) 2012-08-17 2018-08-07 Suncoke Technology And Development Llc Coke plant including exhaust gas sharing
US10047295B2 (en) 2012-12-28 2018-08-14 Suncoke Technology And Development Llc Non-perpendicular connections between coke oven uptakes and a hot common tunnel, and associated systems and methods
US10053627B2 (en) 2012-08-29 2018-08-21 Suncoke Technology And Development Llc Method and apparatus for testing coal coking properties
US10526541B2 (en) 2014-06-30 2020-01-07 Suncoke Technology And Development Llc Horizontal heat recovery coke ovens having monolith crowns
US10526542B2 (en) 2015-12-28 2020-01-07 Suncoke Technology And Development Llc Method and system for dynamically charging a coke oven
US10619101B2 (en) 2013-12-31 2020-04-14 Suncoke Technology And Development Llc Methods for decarbonizing coking ovens, and associated systems and devices
US10760002B2 (en) 2012-12-28 2020-09-01 Suncoke Technology And Development Llc Systems and methods for maintaining a hot car in a coke plant
US10851306B2 (en) 2017-05-23 2020-12-01 Suncoke Technology And Development Llc System and method for repairing a coke oven
US10883051B2 (en) 2012-12-28 2021-01-05 Suncoke Technology And Development Llc Methods and systems for improved coke quenching
US10927303B2 (en) 2013-03-15 2021-02-23 Suncoke Technology And Development Llc Methods for improved quench tower design
US10968393B2 (en) 2014-09-15 2021-04-06 Suncoke Technology And Development Llc Coke ovens having monolith component construction
US10975309B2 (en) 2012-12-28 2021-04-13 Suncoke Technology And Development Llc Exhaust flow modifier, duct intersection incorporating the same, and methods therefor
US11008518B2 (en) 2018-12-28 2021-05-18 Suncoke Technology And Development Llc Coke plant tunnel repair and flexible joints
US11021655B2 (en) 2018-12-28 2021-06-01 Suncoke Technology And Development Llc Decarbonization of coke ovens and associated systems and methods
US11060032B2 (en) 2015-01-02 2021-07-13 Suncoke Technology And Development Llc Integrated coke plant automation and optimization using advanced control and optimization techniques
US11071935B2 (en) 2018-12-28 2021-07-27 Suncoke Technology And Development Llc Particulate detection for industrial facilities, and associated systems and methods
US11098252B2 (en) 2018-12-28 2021-08-24 Suncoke Technology And Development Llc Spring-loaded heat recovery oven system and method
US11142699B2 (en) 2012-12-28 2021-10-12 Suncoke Technology And Development Llc Vent stack lids and associated systems and methods
US11261381B2 (en) 2018-12-28 2022-03-01 Suncoke Technology And Development Llc Heat recovery oven foundation
US11395989B2 (en) 2018-12-31 2022-07-26 Suncoke Technology And Development Llc Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems
US11486572B2 (en) 2018-12-31 2022-11-01 Suncoke Technology And Development Llc Systems and methods for Utilizing flue gas
US11508230B2 (en) 2016-06-03 2022-11-22 Suncoke Technology And Development Llc Methods and systems for automatically generating a remedial action in an industrial facility
US11760937B2 (en) 2018-12-28 2023-09-19 Suncoke Technology And Development Llc Oven uptakes
US11767482B2 (en) 2020-05-03 2023-09-26 Suncoke Technology And Development Llc High-quality coke products
US11788012B2 (en) 2015-01-02 2023-10-17 Suncoke Technology And Development Llc Integrated coke plant automation and optimization using advanced control and optimization techniques
US11851724B2 (en) 2021-11-04 2023-12-26 Suncoke Technology And Development Llc. Foundry coke products, and associated systems, devices, and methods
US11946108B2 (en) 2021-11-04 2024-04-02 Suncoke Technology And Development Llc Foundry coke products and associated processing methods via cupolas

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9683740B2 (en) 2012-07-31 2017-06-20 Suncoke Technology And Development Llc Methods for handling coal processing emissions and associated systems and devices
US10041002B2 (en) 2012-08-17 2018-08-07 Suncoke Technology And Development Llc Coke plant including exhaust gas sharing
US11441077B2 (en) 2012-08-17 2022-09-13 Suncoke Technology And Development Llc Coke plant including exhaust gas sharing
US11692138B2 (en) 2012-08-17 2023-07-04 Suncoke Technology And Development Llc Automatic draft control system for coke plants
US9359554B2 (en) 2012-08-17 2016-06-07 Suncoke Technology And Development Llc Automatic draft control system for coke plants
US10947455B2 (en) 2012-08-17 2021-03-16 Suncoke Technology And Development Llc Automatic draft control system for coke plants
US10611965B2 (en) 2012-08-17 2020-04-07 Suncoke Technology And Development Llc Coke plant including exhaust gas sharing
US10053627B2 (en) 2012-08-29 2018-08-21 Suncoke Technology And Development Llc Method and apparatus for testing coal coking properties
US10760002B2 (en) 2012-12-28 2020-09-01 Suncoke Technology And Development Llc Systems and methods for maintaining a hot car in a coke plant
US11008517B2 (en) 2012-12-28 2021-05-18 Suncoke Technology And Development Llc Non-perpendicular connections between coke oven uptakes and a hot common tunnel, and associated systems and methods
US10047295B2 (en) 2012-12-28 2018-08-14 Suncoke Technology And Development Llc Non-perpendicular connections between coke oven uptakes and a hot common tunnel, and associated systems and methods
US11359145B2 (en) 2012-12-28 2022-06-14 Suncoke Technology And Development Llc Systems and methods for maintaining a hot car in a coke plant
US11142699B2 (en) 2012-12-28 2021-10-12 Suncoke Technology And Development Llc Vent stack lids and associated systems and methods
US10323192B2 (en) 2012-12-28 2019-06-18 Suncoke Technology And Development Llc Systems and methods for improving quenched coke recovery
US11117087B2 (en) 2012-12-28 2021-09-14 Suncoke Technology And Development Llc Systems and methods for removing mercury from emissions
US11939526B2 (en) 2012-12-28 2024-03-26 Suncoke Technology And Development Llc Vent stack lids and associated systems and methods
US9862888B2 (en) 2012-12-28 2018-01-09 Suncoke Technology And Development Llc Systems and methods for improving quenched coke recovery
US10016714B2 (en) 2012-12-28 2018-07-10 Suncoke Technology And Development Llc Systems and methods for removing mercury from emissions
US10975309B2 (en) 2012-12-28 2021-04-13 Suncoke Technology And Development Llc Exhaust flow modifier, duct intersection incorporating the same, and methods therefor
US11845037B2 (en) 2012-12-28 2023-12-19 Suncoke Technology And Development Llc Systems and methods for removing mercury from emissions
US10883051B2 (en) 2012-12-28 2021-01-05 Suncoke Technology And Development Llc Methods and systems for improved coke quenching
US10927303B2 (en) 2013-03-15 2021-02-23 Suncoke Technology And Development Llc Methods for improved quench tower design
US11746296B2 (en) 2013-03-15 2023-09-05 Suncoke Technology And Development Llc Methods and systems for improved quench tower design
US11359146B2 (en) 2013-12-31 2022-06-14 Suncoke Technology And Development Llc Methods for decarbonizing coking ovens, and associated systems and devices
US10619101B2 (en) 2013-12-31 2020-04-14 Suncoke Technology And Development Llc Methods for decarbonizing coking ovens, and associated systems and devices
US10526541B2 (en) 2014-06-30 2020-01-07 Suncoke Technology And Development Llc Horizontal heat recovery coke ovens having monolith crowns
US11053444B2 (en) 2014-08-28 2021-07-06 Suncoke Technology And Development Llc Method and system for optimizing coke plant operation and output
US9708542B2 (en) 2014-08-28 2017-07-18 Suncoke Technology And Development Llc Method and system for optimizing coke plant operation and output
US9976089B2 (en) 2014-08-28 2018-05-22 Suncoke Technology And Development Llc Coke oven charging system
US10308876B2 (en) 2014-08-28 2019-06-04 Suncoke Technology And Development Llc Burn profiles for coke operations
US9580656B2 (en) 2014-08-28 2017-02-28 Suncoke Technology And Development Llc Coke oven charging system
US10920148B2 (en) 2014-08-28 2021-02-16 Suncoke Technology And Development Llc Burn profiles for coke operations
US11795400B2 (en) 2014-09-15 2023-10-24 Suncoke Technology And Development Llc Coke ovens having monolith component construction
US10968393B2 (en) 2014-09-15 2021-04-06 Suncoke Technology And Development Llc Coke ovens having monolith component construction
US10975310B2 (en) 2014-12-31 2021-04-13 Suncoke Technology And Development Llc Multi-modal beds of coking material
WO2016109704A1 (en) * 2014-12-31 2016-07-07 Suncoke Technology And Development Llc Multi-modal beds of coking material
WO2016109699A1 (en) * 2014-12-31 2016-07-07 Suncoke Technology And Development Llc Multi-modal beds of coking material
US10975311B2 (en) 2014-12-31 2021-04-13 Suncoke Technology And Development Llc Multi-modal beds of coking material
US10968395B2 (en) 2014-12-31 2021-04-06 Suncoke Technology And Development Llc Multi-modal beds of coking material
US11060032B2 (en) 2015-01-02 2021-07-13 Suncoke Technology And Development Llc Integrated coke plant automation and optimization using advanced control and optimization techniques
US11788012B2 (en) 2015-01-02 2023-10-17 Suncoke Technology And Development Llc Integrated coke plant automation and optimization using advanced control and optimization techniques
US11214739B2 (en) 2015-12-28 2022-01-04 Suncoke Technology And Development Llc Method and system for dynamically charging a coke oven
US10526542B2 (en) 2015-12-28 2020-01-07 Suncoke Technology And Development Llc Method and system for dynamically charging a coke oven
US11508230B2 (en) 2016-06-03 2022-11-22 Suncoke Technology And Development Llc Methods and systems for automatically generating a remedial action in an industrial facility
US10851306B2 (en) 2017-05-23 2020-12-01 Suncoke Technology And Development Llc System and method for repairing a coke oven
US11845898B2 (en) 2017-05-23 2023-12-19 Suncoke Technology And Development Llc System and method for repairing a coke oven
US11505747B2 (en) 2018-12-28 2022-11-22 Suncoke Technology And Development Llc Coke plant tunnel repair and anchor distribution
US11261381B2 (en) 2018-12-28 2022-03-01 Suncoke Technology And Development Llc Heat recovery oven foundation
US11098252B2 (en) 2018-12-28 2021-08-24 Suncoke Technology And Development Llc Spring-loaded heat recovery oven system and method
US11597881B2 (en) 2018-12-28 2023-03-07 Suncoke Technology And Development Llc Coke plant tunnel repair and flexible joints
US11643602B2 (en) 2018-12-28 2023-05-09 Suncoke Technology And Development Llc Decarbonization of coke ovens, and associated systems and methods
US11680208B2 (en) 2018-12-28 2023-06-20 Suncoke Technology And Development Llc Spring-loaded heat recovery oven system and method
US11071935B2 (en) 2018-12-28 2021-07-27 Suncoke Technology And Development Llc Particulate detection for industrial facilities, and associated systems and methods
US11021655B2 (en) 2018-12-28 2021-06-01 Suncoke Technology And Development Llc Decarbonization of coke ovens and associated systems and methods
US11760937B2 (en) 2018-12-28 2023-09-19 Suncoke Technology And Development Llc Oven uptakes
US11845897B2 (en) 2018-12-28 2023-12-19 Suncoke Technology And Development Llc Heat recovery oven foundation
US11365355B2 (en) 2018-12-28 2022-06-21 Suncoke Technology And Development Llc Systems and methods for treating a surface of a coke plant
US11008518B2 (en) 2018-12-28 2021-05-18 Suncoke Technology And Development Llc Coke plant tunnel repair and flexible joints
US11193069B2 (en) 2018-12-28 2021-12-07 Suncoke Technology And Development Llc Coke plant tunnel repair and anchor distribution
US11486572B2 (en) 2018-12-31 2022-11-01 Suncoke Technology And Development Llc Systems and methods for Utilizing flue gas
US11819802B2 (en) 2018-12-31 2023-11-21 Suncoke Technology And Development Llc Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems
US11395989B2 (en) 2018-12-31 2022-07-26 Suncoke Technology And Development Llc Methods and systems for providing corrosion resistant surfaces in contaminant treatment systems
US11767482B2 (en) 2020-05-03 2023-09-26 Suncoke Technology And Development Llc High-quality coke products
US11851724B2 (en) 2021-11-04 2023-12-26 Suncoke Technology And Development Llc. Foundry coke products, and associated systems, devices, and methods
US11946108B2 (en) 2021-11-04 2024-04-02 Suncoke Technology And Development Llc Foundry coke products and associated processing methods via cupolas

Similar Documents

Publication Publication Date Title
JP2005263983A (en) Method for recycling organic waste using coke oven
JP4893136B2 (en) Blast furnace operation method using woody biomass
WO2000012599A1 (en) Method of treating resin or organic compound, or waste plastics containing them
JP2004217914A (en) Method for producing and using ferrocoke and method for utilizing by-product gas in producing the ferrocoke
CN107353919A (en) A kind of part pure oxygen aoxidizes coke production technique
CN104194816A (en) Method for preparing coke
JP5403027B2 (en) Blast furnace operating method and coke manufacturing method using woody biomass
JP3482838B2 (en) Operating method of mobile hearth furnace
CN102899093B (en) High-efficiency cleaning coal gasifying process
JP5421685B2 (en) Production method of coal-type agglomerated ore for vertical furnace
KR101353896B1 (en) Manufacture method of coke dust briquetting
JP2004285134A (en) Process for producing raw material for metallurgical furnace
JP3802712B2 (en) How to recycle waste plastic
JP4218442B2 (en) Method for producing ferro-coke from biomass
CN111996024B (en) Method for preparing high-reactivity coke by compounding metallurgical dust and high-sulfur coal and cooperatively removing zinc and sulfur
CN104024442A (en) Apparatus for manufacturing molten iron and method for manufacturing the same
JP2000500702A (en) Waste treatment method and apparatus for implementing the method
JP4231213B2 (en) Coke production method
RU2471000C1 (en) Reducing gas obtaining method
JP3597714B2 (en) Small melting furnace with carbonization device and smelting reduction method
JP4218426B2 (en) Manufacturing method of high strength ferro-coke
KR101610286B1 (en) Manufacturing method of reduced iron and apparatus for Manufacturing the same
JP6346641B6 (en) Coke oven gas increase system and method
JP4168709B2 (en) Disposal of used plastic
KR20130058845A (en) Recarburizer using wasted tire